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STMicroelectronics NUCLEO-U545RE-Q

Name: NUCLEO-U545RE-Q
Brand: STMicroelectronics
SKU: NUCLEO-U545RE-Q
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NUCLEO-U545RE-Q

Manufacturer:: STMicroelectronics

Category:: Embedded MCU, DSP Evaluation Boards

Package:

Datasheet:: NUCLEO-U545RE-Q.pdf

Description:: NUCLEO-64 STM32U545RE EVAL BRD

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:104

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Product details

Overview

NUCLEO-U545RE-Q from STMicroelectronics is an STM32 Nucleo-64 development board built around the STM32U545RET6Q ultra-low-power Arm® Cortex®-M33 microcontroller in LQFP64 package, featuring internal SMPS, USB SNK/UFP full-speed capability via USB Type-C®, STLINK-V3EC debugger/programmer, and hardware cryptography acceleration. It targets rapid prototyping of secure, energy-efficient IoT edge nodes and battery-powered industrial sensors.

For engineers reviewing the NUCLEO-U545RE-Q datasheet, NUCLEO-U545RE-Q pinout, NUCLEO-U545RE-Q application, or NUCLEO-U545RE-Q equivalent, this board delivers validated hardware for evaluating U5-series security peripherals (AES-256, PKA, TRNG), SMPS-based power optimization, USB Type-C® device-mode operation, and seamless integration with STM32CubeIDE and IAR Embedded Workbench®.

Technical Context

The board implements the STM32U545RET6Q MCU with Arm TrustZone® for system-level isolation, 512 KB Flash and 256 KB SRAM, and operates across -40°C to 125°C ambient. Its integrated SMPS replaces external DC-DC converters to reduce quiescent current in Run mode and enable sub-100 µA low-power states.

USB connectivity uses a native USB FS PHY routed to a USB Type-C® connector supporting both device (SNK) and upstream-facing port (UFP) roles. The on-board STLINK-V3EC provides mass storage, Virtual COM port, and SWD debug interfaces over the same USB connection without requiring external probes.

Key Specifications

Parameter	Value and Actual Design Meaning
Target MCU	STM32U545RET6Q: Arm Cortex-M33 with TrustZone, 512 KB Flash, 256 KB SRAM, LQFP64
Power Architecture	Integrated SMPS: eliminates external buck converter, enables <100 µA Stop2 current
USB Interface	USB Full-Speed SNK/UFP via USB Type-C®: supports device enumeration and host-side peripheral attachment
Debug Probe	STLINK-V3EC: single-cable debug + programming + VCP + mass storage, no external debugger needed
Cryptography	Dedicated accelerators for AES-256, PKA (RSA/ECC), TRNG, and secure key storage
Expansion Connectors	Arduino Uno V3 header + ST Morpho headers: full access to all 51 GPIOs, multiple UART/SPI/I2C/ADC

Availability

NUCLEO-U545RE-Q is available at Aetrix Electronics and suitable for secure IoT sensor nodes, battery-powered industrial monitors, and low-power edge AI inference prototypes requiring stable component supply and long-term toolchain continuity.

Supply support for NUCLEO-U545RE-Q includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, power devices, and MEMS sensors for industrial, automotive, and consumer applications.

The STM32 Nucleo-64 platform-of which NUCLEO-U545RE-Q is a member-is engineered to accelerate evaluation and prototyping of STM32 MCUs, with standardized form factor, unified software ecosystem (STM32Cube), and production-ready hardware interfaces.

FAQ

Does NUCLEO-U545RE-Q support debugging without additional hardware?

Yes. The board integrates STLINK-V3EC, enabling full SWD debugging, flash programming, Virtual COM port, and mass storage functionality over a single USB Type-C® cable-no external probe required. Firmware updates and real-time tracing are supported out-of-the-box with STM32CubeIDE and IAR EWARM.

What distinguishes NUCLEO-U545RE-Q from other NUCLEO-U5 boards like NUCLEO-U575ZI-Q?

NUCLEO-U545RE-Q uses the LQFP64-packaged STM32U545RET6Q with 512 KB Flash and internal SMPS only, while NUCLEO-U575ZI-Q features the LQFP144 STM32U575ZIT6Q with 2 MB Flash, dual-bank memory, Octo-SPI interface, and external SMPS option. The U545RE-Q prioritizes compactness and ultra-low-power operation over high-memory or advanced peripheral density.

Can the internal SMPS be disabled to use linear regulators instead?

Yes. The board provides hardware-selectable power paths: jumpers allow bypassing the internal SMPS to use the ST-LINK VBUS-supplied 3.3 V LDO or external 3.3 V input. This enables direct comparison of SMPS vs. LDO efficiency in different operating modes using the same PCB layout.

Is USB Type-C® support limited to data, or does it include power delivery negotiation?

No power delivery (PD) negotiation is implemented. The USB Type-C® connector on NUCLEO-U545RE-Q supports USB Full-Speed data-only functions (SNK/UFP), with VBUS used solely as a 5 V input source for the onboard SMPS or LDO. PD controller and CC logic are omitted-this is a USB data interface, not a PD-capable port.

NUCLEO-U545RE-Q Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STM32U5

Packaging:: Bulk

Product Status:: Active

Type:: MCU 32-Bit

Core Processor:: ARM® Cortex®-M33

Platform:: Nucleo-64

Utilized IC / Part:: STM32U545RE

Mounting Type:: Fixed

Contents:: Board(s)

NUCLEO-U545RE-Q FAQ

1.How can I place an order for NUCLEO-U545RE-Q through Aetrix?

Please submit a Request for Quotation (RFQ) for NUCLEO-U545RE-Q on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for NUCLEO-U545RE-Q reliable?

The price and inventory of NUCLEO-U545RE-Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NUCLEO-U545RE-Q is usually 5 days.

3.What payment methods are accepted for NUCLEO-U545RE-Q?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NUCLEO-U545RE-Q transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NUCLEO-U545RE-Q?

NUCLEO-U545RE-Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NUCLEO-U545RE-Q order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for NUCLEO-U545RE-Q?

For technical support, including NUCLEO-U545RE-Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NUCLEO-U545RE-Q requirements.

6.How does Aetrix verify that NUCLEO-U545RE-Q is sourced from the original manufacturer or authorized distributors?

All NUCLEO-U545RE-Q products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NUCLEO-U545RE-Q meets industry standards.

7.What is the process for return or replacement of NUCLEO-U545RE-Q?

All NUCLEO-U545RE-Q units undergo pre-shipment inspection (PSI). If there is an issue with NUCLEO-U545RE-Q, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The NUCLEO-U545RE-Q part is unused and in its original packaging.

Return procedure for NUCLEO-U545RE-Q:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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